Compressor Simple Structure
1, compared with the reciprocating piston refrigeration compressor, Compressor screw refrigeration compressor with high speed, light weight, small size, small footprint and low exhaust pulsation and a series of advantages.
2, screw-type refrigeration compressor without reciprocating mass inertia force, dynamic balance performance, smooth operation, the seat vibration is small, Compressor the foundation can be made smaller.
3, screw-type refrigeration compressor structure is simple, less mechanical parts, no like valve, piston ring and other wearing parts, and its main friction parts such as rotor, bearings, strength and wear resistance are relatively high, and lubrication conditions Good, Compressor so less machining, low material consumption, long operating cycle, the use of more reliable, simple maintenance, Compressor is conducive to the realization of automation.
4, compared with the speed of the compressor, screw compressor with a mandatory gas transmission characteristics, that is, almost no exhaust gas from the exhaust pressure, in the small displacement does not occur when the surge phenomenon, in the broad work Within the scope of the range, Compressor can still maintain a high efficiency.
5, using a slide valve adjustment, Compressor can achieve energy stepless adjustment.
6, the screw compressor is not sensitive to the liquid, you can use fuel injection cooling, so the same pressure ratio, the exhaust temperature is much lower than the piston, so single-stage pressure ratio.
7, no clearance volume, so the volume efficiency is high.
Screw-type intake side suction port, Compressor must be designed so that the compression chamber can be fully inspiratory, and screw-type air compressor does not have intake and exhaust valve group, intake only by a regulating valve open, close the adjustment, When the rotor is rotated, the tooth groove space of the main and auxiliary rotor has the largest space when it is turned to the inlet end wall opening. Compressor At this time, the tooth groove space of the rotor is connected with the free air of the air inlet, The air is completely discharged, the end of the exhaust, Compressor the tooth groove is in a vacuum state, when transferred to the intake port, the outside air is inhaled, along the axial flow into the main and auxiliary rotor teeth. Screw Air Compressor Reminder When the air is filled with the entire tooth groove, the inlet side of the rotor is turned away from the air intake of the cabinet, Compressor and the air between the grooves is closed.
The main and vice rotor at the end of the suction, the main and vice rotor tooth peak and the case closed, then the air in the tooth groove closure is no longer outflow, Compressor that is [closed process]. The two rotors continue to rotate, the tooth peak and the tooth groove in the suction side of the anastomosis surface gradually move to the exhaust side.
During the conveyance process, Compressor the meshing surface gradually moves toward the exhaust end, that is, the gap between the meshing surface and the exhaust port is gradually reduced, Compressor and the gas in the groove is gradually compressed and the pressure is increased, that is, [compression process]. While the compression while the oil is also due to the role of pressure and spray into the compression chamber and mixed with air.
When the meshing end face of the rotor in the maintenance of the screw air compressor is turned to communicate with the exhaust of the casing, Compressor the compressed gas is discharged at the maximum pressure of the compressed gas until the engaging surface of the tooth peak and the tooth groove is moved to the exhaust (The exhaust process), and the length of the tooth groove between the rotor engaging surface and the cabinet inlet is at the same time, Compressor and the length of the tooth groove between the rotor meshing surface and the casing inlet is reached. Long, Compressor the inspiration process in progress.